−30 −
Adjustment Procedures Results of Improper Adjustment
™ Set tongue 2 of thread tension disk separating plate to such a
near position where the tongue hardly comes in contact with
thread tension disks 1.
Thread tension disk 1 starts floating immediately after the
start of thread trimming.
™ Adjust so that the thread tension disk separating plate can
move smoothly and freely among thread tension disks 1.
Thread trimming mechanism and thread tension release
mechanism are interlocked.
™ Loosen screw 3 and turn eccentric shaft 4 located in the
rear of screw 3 to set lever 5.
™ Loosen screw 3 again, and make sure that there is no
interference in any place.
™ Adjust thread tension release lever 6 so that thread is released
and the separating plate works smoothly.
Thread tension release is simultaneously performed with the
start of thread trimmer device.
™ Adjust the length of remaining needle thread after thread
trimming with thread tension release pins 7 of needle thread.
™ Adjust the shortest length of remaining thread with thread
tension release pins 7 so that the next stitches can be formed
within one to two stitches.
™ Adjust thread tension release pin 8 for top covering thread so
that spreader thread (top covering thread) is securely hauled
at the time of thread trimming and the next stitch can be formed
from the first stitch.
™ Part 9 is for looper thread and securely hauls the looper thread
at the time of thread trimming.
(Caution) Move downward thread tension release pins 7 to
haul thread longer and upward thread tension
release pins 7 to shorten the length of remaining
thread.
From the library of: Diamond Needle Corp